Prady's sample application:- Microservice Architecture Pattern

This is a PoC application, which demonstrates Microservice Architecture Pattern using Spring Cloud, Netflix OSS, Consul, ELK, Docker and monitoring solution.

Frameworks used

• Spring Cloud
• Consul
• Netflix OSS
  • Zuul
  • Hystrix
  • Turbine
  • Ribbon
• Feign
• Sleuth
• Zipkin
• ELK Stack
  • Logstash
  • Elasticsearch
  • Kibana
• Monitoring
  • Prometheus
  • Grafana
  • cAdvisor
  • NodeExporter

Before you start

• Install Docker and Docker Compose.

Get, Build and Run

• git clone https://github.com/pradyb/microservices
• cd microservices
• mvnw clean package -DskipTests
• docker-compose up --build -d
• cd devops-monitoring
• docker-compose up --build -d

Test

• mvn test This test invokes various APIs via Gateway service and the results can be monitor using below URLs.

Scale a container

• docker-compose scale userservice=2

URLs

Containers	Use	URL
Consul	Service Discovery and Configuration	http://localhost:8500/ui
Kibana	Log Visualize	http://localhost:5601
Zipkin	Distributed Tracing system	http://localhost:9411
Hystrix & Turbine	Aggregating streams of Server-Sent Event (SSE)	http://localhost:8080/hystrix/
Prometheus	Application Metrics Database	http://localhost:9090/graph
Grafana	Metrics Visualize	http://localhost:3000
RabbitMQ	Message Broker	http://localhost:15672

Other info

• Grafana: Login with user name admin and password changeme.
• Kibana: URL to view logs with basic columns.

http://localhost:5601/app/kibana#/discover?_g=(refreshInterval:('$$hashKey':'object:999',display:'5%20seconds',pause:!f,section:1,value:5000),time:(from:now%2Fd,mode:quick,to:now%2Fd))&_a=(columns:!(host,level,appname,logger_name,message,X-B3-ParentSpanId,X-B3-TraceId,thread_name),index:'logstash-*',interval:auto,query:(query_string:(analyze_wildcard:!t,query:'*')),sort:!('@timestamp',desc),uiState:(spy:(mode:(fill:!f,name:!n)),vis:(legendOpen:!f)))

Grafana Dashboard

• Application Transactions
• Hystrix

Turbine Dashboard

Zipkin

Thanks to Stefan Prodan for providing a great setup for monitoring Docker containers Stefan Prodan Blog.

TODO

• OAuth for Client services.